Each coin measures 16mm (5/8ths of an inch) in diameter excluding any suspension bales. The whole piece measures 11 inches in length and weighs 29.9 grammes. The fully working dog clip is marked 'SS' for sterling silver and the chain tests as silver. There is some surface wear and the whole piece is very tarnished but generally it is in very good condition. I have never seen anything quite like this before and I wonder if it is some kind of family tree. Such a shame there is no history with it.